Methods/Steps

1

The first idea is that there are program residues in the system. It may not be installed because it has not been deleted, so use the RE browser. Search for program-related keywords, delete all related files and directories found, and then restart and install the program again. The result is invalid;

2

Think

to before I had a backup, so I opened Titanium Backup, found the relevant software, and restored: I first selected Program + Data, and it showed that the restore failed. Then I selected the restore program alone, and it said that the restore was successful, but there was nothing in the system

I saw a successful restoration program, so I was deceived (I did not try to restart the system here. I don’t know if restarting the system after restoration will be effective. Interested friends can try it~);

3

There is no other way

except Google. The first thing I found is the most successful method: connect to the computer in storage mode or use Root

Explorer finds the .android_secure folder in the SD card directory. There should be a smdl2tmp1.asec in it, or it may be another name. In short, if the file naming format is obviously different from the normal program, delete it. I tried installing the software again, but I couldn’t find the relevant directories and files in either the system or the SD card, so this method was completely useless to me;

4

Second Method: If the installation of the application on the PC fails, please first check whether the U0SB driver corresponding to the Android phone is installed. Generally, using Haozhuo Mobile Assistant or other mobile assistants will automatically install the mobile phone driver for you. I am a mobile phone The terminal prompts that it failed, and my driver is installed correctly, and Wandoujia is used normally, so this has nothing to do with me;

5

The third method: check the phone settings-application- Whether Unknown Sources is checked, otherwise it will cause some applications that are not provided by the electronic market to be unable to be installed. I checked it, so this has nothing to do with me;

6

Chapter< /p>

Four methods: Use the system’s own program management to view the programs on the SD card. Some programs actually do not have colored icons. It turns out that these software without icons are causing trouble. These software without icons are In the past, some software data was not installed correctly or was not completely uninstalled. If you install it again, you will get an error. Now we use the system's own software management to uninstall them cleanly, and there will be no errors when you install the software again. But I can't even see any icons using the system's built-in program management

so this method is useless to me;

7

Fifth method: Just delete /mnt/secure/asec/smdl2tmp1.asec

(In drive mode: removable disk/.android_secure/smdl2tmp1.asec), Just install it again. This method is a supplement to the first method. Unfortunately

There is no mnt directory in my system and card, so it is useless;

8< /p>

The sixth method: When upgrading an installed program, it prompts "The application is not installed." This will appear when upgrading a small number of software. I can only uninstall the old version and then install the new version. I can't find the uninstaller at all. , so it’s useless;

9

The seventh method: check Settings-Development-Allow simulation locations, and it’s OK. I checked this but it still doesn’t work;

10

The eighth method: Connect the mobile phone to the computer and then open 91 Mobile Assistant, install an application at will, select the installation path as the mobile phone memory, I am a 2.1 system, and the software is originally They are all installed in "memory", so this is useless;

11

The ninth method: There are also some parts that cannot be overwritten because the software signature has been changed. Just delete and reinstall the new version. This principle is the same as method six, so it doesn't work for me;

12

The tenth method: directly restore factory settings, this is A method that I don’t want to do, but it should work in theory.

END

Solution

After all the above attempts, the problem still cannot be solved. It’s so frustrating. Do I have to do a factory reset? I hesitate. Thirdly, I have started to prepare for reinstallation, but when I searched for the installation principles of Android system, I actually found a way to solve this non-installation problem that has troubled me for a long time. Let's take a look at the solution together:

In fact, the Android system program installation is to copy the APK file to the APP directory and grant permissions. The backup is also to copy the APK file and related data files. According to this principle, I did the following:

First download the APK installation package of the application and put it into the SD card;

Rename the APK file to the form com.xxx.xxx.apk (compare the file name in the system APP directory)

Put it in the app folder and modify the permissions before installing

Still "the program is not installed"

At this point, all possible methods have been tried, the solution is: Decisive Abandon this software!

The above are the reasons and solutions for why the application is not installed when installing games on mobile phones. Friends, do you understand? Okay, I hope the editor will share it with you today The reasons and solutions for why the application is not installed when installing a game on your mobile phone are helpful to everyone.